Oil burner



l Patented July 12, 1927.. Y

ERVIN E. sPLEfrTnamr MONTEVIDEO, fivr'rnivnsorii;

oIL BURNER.

Application iled February 23, 1952.6'. SerialjNo. 89,841.

This invention relates to devices` or appa,

`ratus for burning hydrocarbons, commonly known as oil burners. A

Itis the inainl object ofthe invention to `A i'urther object of ythe invention is to Y20 provide such a device -liavingits vaporizing coil connected at its lower en d to the source4 of fuel supply and its upper end with the burner disposed therebelow, the conduit of said burner being disposed in'close relation to Ythe side of said coil and in position. to be.r strongly heatedv through practically its Yenltire height. f J

It is a more specific object of the' invention' to provide an oil burner having a casing i?" disposed above the burner proper in verti calvaligninent therewith and having a vaporizing coil encircling said casingv in close re# j lation thereto.7 the lower convolution of said coil being connected tothe fuel supply and the upper convolution of Vsaid lcoilbeing connected to a vertical conduit extending downwardly between the inner side ofthe coil and said.casing,whereby the hottest portion of the coil will be ofcourse the top portion directly communicating with vthe burner and whereby the conduit connecting Y the burnervrith said top'portion will bev subjected to intense'heat from the combus# tion chamber. l f i l* These and other objects of the invention will be apparent from the following de scription made vin connection with the accompanying. drawings, wherein like characseveral views, and in which Fig. l is a. sideV elevation of the preferred form of the invention connected to a source of fuel supply, 1 i

Fig. 2 is a planrview of the same, and Fig. 3 is a plan view showing a modified form of burner wherein the conduitl concoil in close vrelation thereto. ,Y v

" duit ters refer. to Vsimilar parts throughout the suc-h material if desired. The employment of this material the-conduit 13 andfkbiiiner cha-mberhas been foundv to materiallyl assist Vin insuring an eveiiflow `rof vapor through l thejetorices 6a. 110 I necting the. vaporizingcoil witlithe burner'r proper fis .disposed'on vthe-outer side of the ln the'drawings a liquid fuel reservoir lis indicated by the numeral 4, having its lower end connected with a vertical delivery conduit. Y Y n 'l ln the preferred rform of the invention substantially cylindrical ,burner 6 is vprovided adapted tofrestgon afsupporting surface having in its top face faplurali'ty of spaced `jet outlets 6a. .The sides andbottom of burner fare,preferably-covered with y a` layer of asbestos or other insulation 7270 Above burner "6 with its aXis substantiallyv coincident Jwith theafigis ,of'saidV burner i i perforated cylindrical casing 8 Yis disposed, lsupported 4in spaced 'rela-tion to the top of the `burner 6 by `means off-a..V plurality of cir-V cuin'fereiitially/aifran-gedfangle straps j9.

A vaporizingcoil lO'is preferably formed from tubing of elliptical crosssection where- ,byA a slightlygrea'ter amount :of surface will ,be exposed toy the heatfat the sides o'f casing 8; Y The lowermost convolution ofrcoil` lOfis .connected v,by av substantially;'horizontal con` I v duit l1 to fuel delivery conduitr 5. A-yvalve l2, preferably of 'y the yneedlev type, isinterposedy in conduit 11:controllingfthe.flow of,l fuel to coil l0. The topi convolution of coil Y 1Y0 is connected vby a preferably straight verf tical conduit 13 with one side of the burner Y* 6. 'It will be noticed that inthe preferred `Vform of the invention' each `'convolution of'so coil l0 is provided with a relatively small outwardly projecting bulge l0, the bulges on theseveral convolutions being .vertically aligned and affording space toacconimodate vertical condiiit l3.- The'delivery con- Q5 duit from the vaporizing coilis thus heldin very close relation to the sidefof casing 8,

which forms the combustion chamberwhere-vv by intense heat may be applied to said conf and the conduit 13 as wellV as the upper coii-A i' volutioii of theicoil 10 may also be filled @withv The forni of the .invention illustrated in throughout' practically its `entire 10u Fig. 3 is identical with the preferred form I i CTI with the exception that the vaporizing coil indicatedby the numeral 15 is inade up of a plurality of spiral convolutions without the bulges 102L andthat .the 'conduit 16 connecting the upper endY ofthe vaporizing coil with the burner is disposed on the outer side of the vaporizing coil in close relation there to;v Conduit 16 of course will not receive as great an' amount of heat as the conduit r13 f in the vpreiferred forni but the close relation of thisconduit to the hot coil results in an even delivery of vapor tothe burner proper.'

The lower portion of conduit 16 may be insulated if desired to increase .eliiciency of vthe device.

' In operation the fuel will be fed to the lower end of the coil 10, the how controlled by'valve112.- After the vapor has been generated the combustion` will take pla-ce in the combustion vchamber Ywithin, casing 8, oxygen being applied through the bottoniof the cas- The conduit '13 is ydisposed in close relation to .theside'ofcasing 8, where `it is affected byV intense heat, thereby preventingthe vapor from coolingand insuring lan even vdelivery v of vapor'to'tlie chamber inLburncr 6. yThe Vbulges 10, ashasbeen stated, afford space y Y kfor conduit 13 and are sos'inallv that they do 'volutions v Y `V` The entire devicel issupported lfrom the Y 1 source of fuel supply.

not give therheated vapor within the coil a chance tor cool in circulating the several conburner Vchamber y6 which 'forms the base of the device. My device, therefore7 can be set up on any supporting surface Without requiring a frame or n'iountings ofany' sort.

y Froin the above description it will be seen that VI have invented a simple but 'highly vefficient oilburner capable ofwide general usage which vaporizes and burns thefuel with a very high degreeof efiiciency.

It will of course be understood that various lchanges may be niade in theforin, details,

proportion and arrangement of parts with-` o ut departing from the scope of iny invention. j

`What is claimed is: liquid fuel burner comprisinga hollow burner head having' a discharge passage through one side thereof, V'a perforated ceiitrically with said burner head and spac d therefrom', a Vvaporizingl coil closely encircling` said coinbustion chamber, the conn volutions of said coil being provided with tubular combustion chamber inounted'con- Y vertically alined outwardly extending bulges affording arcuate recesses between said-chainber andsaid coil,' a vertical/conduit con-j necting the uppermost .co'nvolution of said coil with said burner head extending through said recesses, and nie-ans for lconnectingtheV lowerinost convolution of said coilr ivitlia ln testimony whereof vhe docs allii: his signature.

niivin E. sriiii'rfria; V 

